face bingo
when you shout random numbers while wanking in a girl's face and if the number you scream before you blow your load is on her card, she yells 'house' and gets free stuff.
he yelled '23' and she had it on her card, so she got free chips
he screamed '7' and she had it, so she got free wine
he said '12' and she had it, so she got free chocolate